You can begin reading the tutorial sequentially,
or visit only those trails that interest you.
If you have questions about the tutorial
(how to download it, when it was updated, how to give us feedback...),
go to the tutorial's
first page.

Use the JDBC to connect to a database, send SQL statements,
and process the results. The JDBC provides uniform
access to a wide range of relational databases and
provides a common base on which database tools can be built.

Java IDL provides CORBA-compliant interoperability
for programs written in Java.
This trail gives you an overview of CORBA
and takes you through the steps to building a
CORBA-compatible client/server combination with Java IDL.

Learn how the built-in security features protect
you from malevolent programs.
See how to use tools for controlling access to resources,
generating and checking
digital signatures, and creating and managing keys
needed for signature generation and checking.
See how to incorporate
security checks and cryptography services into your
programs.